Echeveria rulfiana Jimeno-Sevilla, Santana Mich. & P. Carrillo Echeveria rulfiana Jimeno-Sevilla, Santana Mich. & P. Carrillo in Acta Bot. Mex. 110: 72-78, f. 1-3. 2015 sec. Etter & Kristen 1997–2017